it's for this scoot : VLB 1 T 044505 chassis VLB 1 M 44693 engine (unchanged, not ported...yet)

purpose is to create a more powerfull commuter/tourer,not a racer or sprinter.

new marzucelli crankshaft is fitted and new bearings done allready.

planning to fit either Si20/20 or Si24/24 carb.

simple setup.

can anyone advise me on what kit?

this engine is a 2-port engine!

was thinking about 177 pinasco-kit?

thanks.

weird this subject does not have any response...

Hi dude

I guess the Pinasco 177 with 2 ports would be the best choice for your projekt.

Notice that it´s necessary to mount a 24 SI Carb, otherwise your Cylinder will crack.

You can also use the DR 177 with 3 ports and close one port with the feet gasket.

cheers

ok, thanks for the reply.

some more questions arise again : the sprint has now a Si17/20 carb but i was about to swap it for a 20/20 carb.

i could mount the 24mm carb but the engine was just renewed so i can't open the cases again to open up the inlet port...

if the pinasco really needs the 24mm carb, does the DR  need it too, the 24mm carb or would a 20/20 be good enough?

don't think it will help mounting a 24mm carb if the cases haven't been opened up,right?

i just want some more torque, not really high power.

thanks, hannes.

Hi dude

The thing is not only the performance, the 24 makes sense because you got more cylinder cooling reg. the oil/gas mix.

24 Carb = more gas and less pistoncracker

You can also go on without opening the inlet and open it for the next bearing/oilseal replacement.

Do you mounted a racing crank ?

If you`ve got the original crank it could be a problem, then you`ve forced to reopen your engine.

cheers

i figured it would be a cooling thing, the 24mm carb

i put a marzuchelli racing crank in the sprint with the rebuild,so that's good for now.

what setting about jets (air jet,mixer tube,main jet) would you recommend for the Si24/24mm carb?

and what about idle jet?

i'll be using a sito plus exhaust.

do i have to adjust timing with using this pinasco 2-port cilinderkit?

Hi dude

I recommend you a mainjetsize from 120-118, the rest of the carb can be stock.

I guess the ignition timing should be 19 degrees.

cheers

Hello Larocca,

I am completly newbie on this vespa world.

I've got a 1967 Vespa 150 Sprint with this engine serial number: VLB1M042627

Can i install the kit Pinasco 177 + carburetor DELL'ORTO/DRT SI 24/24 E (art no. 400000T5 ) + Racing Exhaust SITO PLUS ( art no. 23000000).

Is there anything else that i take into consideration?

Thank you for your support. 

Hi Nuno !

Please check if your engine has got 2 boostports.

If yes you can use the pinasco kit.

If it´s a 3 port engine i recommend the polini 177.

The 400000T5 carburetor is perfect.

The best exhaust for this setup is definitley the sip road 24166000.

Also a reinfored clutch with a 1-2 dents longer clutch gear would be helpful.

Cheers

hi i fitted mine with 5 port lml 150 cc you can also fit a 177 dr 3 port kit but i thing you will need to upgade your clutch,and open the inlets